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What does the term 'functional dependency' mean in the context of databases?

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Question: What does the term \'functional dependency\' mean in the context of databases?

Options:

  1. One attribute uniquely determines another attribute
  2. Attributes are dependent on the database schema
  3. Data is stored in a hierarchical manner
  4. Data is replicated across multiple tables

Correct Answer: One attribute uniquely determines another attribute

Solution: 

Functional dependency means that one attribute uniquely determines another attribute in a relation.

What does the term 'functional dependency' mean in the context of databases?

Practice Questions

Q1
What does the term 'functional dependency' mean in the context of databases?
  1. One attribute uniquely determines another attribute
  2. Attributes are dependent on the database schema
  3. Data is stored in a hierarchical manner
  4. Data is replicated across multiple tables

Questions & Step-by-Step Solutions

What does the term 'functional dependency' mean in the context of databases?
  • Functional Dependency – A relationship between two attributes in a relation where one attribute uniquely determines the value of another attribute.
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